CVE-2023-38538

Severity: medium (CVSS 5.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-04 · updated 2026-06-17
Weakness: CWE-362

Description

A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.

Affected products

Facebook WhatsApp for Android: before 2.2320.2 — fixed in 2.2320.2

How to fix

Upgrade to a fixed version: Facebook WhatsApp for Android 2.2320.2. Check the vendor advisory for mitigations.

References

https://www.whatsapp.com/security/advisories/2023/
https://www.whatsapp.com/security/advisories/2023/

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